GuiGraphicsWindowsGDI.h

/*********************************************************************** Vczh Library++ 3.0 Developer: Zihan Chen(vczh) GacUI::Native Window::GDI Provider for Windows Implementation::Renderer Interfaces: ***********************************************************************/

#ifndef VCZH_PRESENTATION_ELEMENTS_GUIGRAPHICSWINDOWSGDI

#define VCZH_PRESENTATION_ELEMENTS_GUIGRAPHICSWINDOWSGDI

#include "..\GuiGraphicsElement.h"

#include "..\GuiGraphicsTextElement.h"

#include "..\..\GraphicsComposition\IncludeForward.h"

#include "..\..\NativeWindow\Windows\GDI\WinGDI.h"

#include <wincodec.h> #include <MLang.h>

namespace

{

namespace

presentation

{

namespace

elements

{

/*********************************************************************** Raw API Rendering Element ***********************************************************************/

class

GuiGDIElement

;

/// <summary>GDI Rendering event arguments.</summary>

struct

GuiGDIElementEventArgs

compositions

GuiEventArgs

{

public

/// <summary>The element that raised this event.</summary>

GuiGDIElement

element

;

/// <summary>The device context to draw. The HDC handle can be retrived using dc->GetHandle(), but it is recommended that using the WinDC class directly.</summary>

windows

WinDC

;

/// <summary>The range for rendering.</summary>

Rect

bounds

;

GuiGDIElementEventArgs

(

GuiGDIElement

_element

windows

WinDC

_dc

Rect

_bounds

) :element(

_element

) ,dc(

_dc

) ,bounds(

_bounds

) { } };

/// <summary>

/// Defines an element for customized rendering using GDI.

/// </summary>

class

GuiGDIElement

public

GuiElementBase

GuiGDIElement

> {

DEFINE_GUI_GRAPHICS_ELEMENT(GuiGDIElement, L"GDIElement")

friend

class

GuiElementBase

GuiGDIElement

public

static

vint

GetElementType

() {

static

vint

elementType

= -

;

(

elementType

== -

) {

auto

manager

GetGuiGraphicsResourceManager

();

{

(!(

manager

nullptr

))

throw

Error

(

L"SetGuiGraphicsResourceManager must be called before registering element types."

);}

while

(

);

elementType

manager

RegisterElementType

(

WString

(

L"GDIElement"

false

)); }

return

elementType

; }

protected

GuiGDIElement

();

public

/// <summary>Rendering event.</summary>

compositions

GuiGraphicsEvent

GuiGDIElementEventArgs

Rendering

; }; }

namespace

elements_windows_gdi

{

/*********************************************************************** Functionality ***********************************************************************/

class

IWindowsGDIRenderTarget

public

elements

IGuiGraphicsRenderTarget

{

public

virtual

windows

WinDC

GetDC

()=

; };

class

IWindowsGDIResourceManager

public

Interface

{

public

virtual

Ptr

windows

WinPen

GetFocusRectanglePen

()=

;

virtual

Ptr

windows

WinPen

CreateGdiPen

(

Color

color

;

virtual

void

DestroyGdiPen

(

Color

color

;

virtual

Ptr

windows

WinBrush

CreateGdiBrush

(

Color

color

;

virtual

void

DestroyGdiBrush

(

Color

color

;

virtual

Ptr

windows

WinFont

CreateGdiFont

(

const

FontProperties

fontProperties

;

virtual

void

DestroyGdiFont

(

const

FontProperties

fontProperties

;

virtual

Ptr

elements

text

CharMeasurer

CreateCharMeasurer

(

const

FontProperties

fontProperties

;

virtual

void

DestroyCharMeasurer

(

const

FontProperties

fontProperties

;

virtual

Ptr

windows

WinBitmap

GetBitmap

(

INativeImageFrame

frame

bool

enabled

;

virtual

void

DestroyBitmapCache

(

INativeImageFrame

frame

; };

extern

IWindowsGDIResourceManager

GetWindowsGDIResourceManager

();

/*********************************************************************** OS Supporting ***********************************************************************/

class

IWindowsGDIObjectProvider

public

Interface

{

public

virtual

windows

WinDC

GetNativeWindowDC

(

INativeWindow

window

;

virtual

IWindowsGDIRenderTarget

GetBindedRenderTarget

(

INativeWindow

window

;

virtual

void

SetBindedRenderTarget

(

INativeWindow

window

IWindowsGDIRenderTarget

renderTarget

;

virtual

IWICImagingFactory

GetWICImagingFactory

()=

;

virtual

IWICBitmap

GetWICBitmap

(

INativeImageFrame

frame

;

virtual

IMLangFontLink2

GetMLangFontLink

()=

; };

extern

IWindowsGDIObjectProvider

GetWindowsGDIObjectProvider

();

extern

void

SetWindowsGDIObjectProvider

(

IWindowsGDIObjectProvider

provider

); } } }

extern

void

RendererMainGDI

();

#endif